T-Mobile Prism vs Alcatel OT-991 (Single-sim)
Side by side comparison between T-Mobile Prism vs Alcatel OT-991 phones, differences, pros, cons and full specifications. What's the better?
,
3.5"
TFT
TFT
320x480
3.1
MP
MP
512MB
RAM
RAM
Single-core
1400
mAh
mAh
(Removable)
vs
4"
TFT
TFT
320x480
3.1
MP
MP
0.3mp
256MB
RAM
RAM
Single-core
1500
mAh
mAh
(Removable)
What's the better phone? Alcatel OT-991 (Single-sim)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
4 Advantages 
10 Advantages | 22 Common items in both devices |
| 512MB (150MB available) |
| Until 32GB microSD, microSDHC |
| TFT LCD |
| 260 thousand |
| 320x480 pixels |
| (back) 3.1MP |
| Only digital zoom |
| +15 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| T-Mobile Prism | Alcatel OT-991 (Single-sim) | |
| Change model | ||
| Model | T-Mobile Prism | OT-991 (Single-sim) |
| Other model names | T-Mobile Prism U8651, Huawei Astro | Alcatel One Touch 991, Alcatel 991 |
| Country or region available |  USA | feature not registered |
| Brand | T-Mobile | Alcatel |
| Release date | 5/6/2012 | 6/1/2012 |
| Depth | 12.2 millimeters (0.48 inches) | 10.8 millimeters (0.43 inches) |
| Size (width x height) | 60.2 x 116.3 millimeters (2.37 x 4.58 in) | 68 x 122 millimeters (2.68 x 4.8 in) |
| Weight | 125 grams (4.38 ounces) | 131 grams (4.59 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| T-Mobile Prism | Alcatel OT-991 (Single-sim) | |
| Display type | TFT LCD | TFT LCD |
| Screen size | 3.5" inches | 4" inches |
| Screen-to-body ratio | ~52.1% (screen-to-body ratio) | ~57.4% (screen-to-body ratio) |
| Display resolution | 320x480 pixels | 320x480 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 165 PPI | 144 PPI |
| Colors | 260 thousand | 260 thousand |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| T-Mobile Prism | Alcatel OT-991 (Single-sim) | |
| System version | Android 2.3.5 Gingerbread | Android 2.3.6 Gingerbread |
| Firmware update | Android 2.3.6 Gingerbread | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| T-Mobile Prism | Alcatel OT-991 (Single-sim) | |
| Chipset | 32bit: Qualcomm Snapdragon S1 MSM7227 | 32bit: MediaTek MT6573 |
| CPU | Single-core, 1 processor: 1x 600MHz ARM1136EJ-S (Single-core) | Single-core, 1 processor: 1x 800MHz ARM11 (Single-core) |
| GPU graphical controller | Qualcomm Adreno 200 | PowerVR SGX531 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| T-Mobile Prism | Alcatel OT-991 (Single-sim) | |
| RAM memory | 512MB | 256MB |
| Internal storage | 512MB (150MB available) | 512MB (150MB available) |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| T-Mobile Prism | Alcatel OT-991 (Single-sim) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 7.2/5.76 Mbps | 7.2 Mbps |
| Network technology | 2G, 3G | 2G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/1700/1900/2100 | Not supported |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA | GPRS, EDGE, UMTS, HSDPA |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| T-Mobile Prism | Alcatel OT-991 (Single-sim) | |
| Back camera (main camera) | 3.1 megapixels | 3.1 megapixels |
| Main camera resolution | 2048x1536 pixels | 2048x1536 pixels |
| Video recording (primary) | WVGA (800x480) 15 fps | VGA (720x480) 30 fps |
| Flash | Not supported | LED flash |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | Not supported | Not supported |
| Touch focus | Not supported | feature not registered |
| Image stabilization | feature not registered | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Smile detection | feature not registered |
| BSI sensor | Not supported | feature not registered |
| HDR | Not supported | feature not registered |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| T-Mobile Prism | Alcatel OT-991 (Single-sim) | |
| Front camera (secondary) | Not supported | 0.3 megapixels |
| Front camera resolution | Not supported | 640x480 pixels |
| Video recording (secondary) | Not supported | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| T-Mobile Prism | Alcatel OT-991 (Single-sim) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | feature not registered |
| Radio | FM | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.264 |
| Audio formats | MP3, WAV, eAAC+ | MP3, WAV, WMA, AAC+ |
🔌 Connectivity | ||
| T-Mobile Prism | Alcatel OT-991 (Single-sim) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 2.1 + A2DP | 4.0 + A2DP |
| WiFi | 802.11 b/g [wifi3] (2.4GHz) | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Not supported | feature not registered |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | feature not registered |
🧭 Sensors | ||
| T-Mobile Prism | Alcatel OT-991 (Single-sim) | |
| Sensors | Accelerometer Proximity sensor | Accelerometer Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| T-Mobile Prism | Alcatel OT-991 (Single-sim) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1400 mAh | 1500 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 6 hours | 10 hours |
| Standby | 360 hours (15 days) | 400 hours (16.7 days) |
➕ Other features | ||
| T-Mobile Prism | Alcatel OT-991 (Single-sim) | |
| Call control | Voice dialing, Voice recorder | Voice recorder |
| Messaging | SMS (Swype), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML | HTML, XHTML, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black • 2GB microSD included • WiFi hotspot Java framework | • Colors: Black, White • HAC (M3/T3) • WiFi hotspot Java framework |
☢️ Radiation rate | ||
| T-Mobile Prism | Alcatel OT-991 (Single-sim) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 1.11W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |